Ultrasonic signal time-frequency decomposition for borehole evaluation or pipeline inspection
US9322807B2 · kind B2 · utility
3Cited by
8References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Apr 16, 2014 |
| Grant date | Apr 26, 2016 |
| Priority date | — |
| Expiry date | Apr 16, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/269
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In some embodiments, methods, apparatus, and systems may operate to launch acoustic waves along a first acoustic path length from an acoustic transducer. The apparatus receives a reflected signal in response to each acoustic wave, each reflected signal including at least one echo. The reflected signal is decomposed, using a time-frequency decomposition method with basis functions, into a wavelet associated with each echo. Parameters describing each associated wavelet are determined and a borehole evaluation or pipeline inspection is performed based on the parameters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.